CVE-2025-39943

In the Linux kernel, the following vulnerability has been resolved: ksmbd: smbdirect: validate data_offset and data_length field of smb_direct_data_transfer If data_offset and data_length of smb_direct_data_transfer struct are invalid, out of bounds issue could happen. This patch validate data_offset and data_length field in recv_done.

CVSS 3.1

7.1CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

EPSS

0.3% chance of exploitation in the next 30 days; higher than 18% of CVEs (scores of 2026-10-25)

CWE

CWE-125

Published

2025-10-04

Modified

2026-10-19

Record from

the NVD, synced 2026-10-21

Affected

• linux:linux_kernel

References

• https://git.kernel.org/stable/c/5282491fc49d5614ac6ddcd012e5743eecb6a67c
• https://git.kernel.org/stable/c/529b121b00a6ee3c88fb3c01b443b2b81f686d48
• https://git.kernel.org/stable/c/773fddf976d282ef059c36c575ddb81567acd6bc
• https://git.kernel.org/stable/c/8be498fcbd5b07272f560b45981d4b9e5a2ad885
• https://git.kernel.org/stable/c/bdaab5c6538e250a9654127e688ecbbeb6f771d5

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